20882894958 has 80 divisors (see below), whose sum is σ = 48691368000. Its totient is φ = 6684185664.

The previous prime is 20882894957. The next prime is 20882894993. The reversal of 20882894958 is 85949828802.

It is a junction number, because it is equal to n+sod(n) for n = 20882894895 and 20882894904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20882894957) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 377668 + ... + 429416.

It is an arithmetic number, because the mean of its divisors is an integer number (608642100).

Almost surely, 2^20882894958 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20882894958, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24345684000).

20882894958 is an abundant number, since it is smaller than the sum of its proper divisors (27808473042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20882894958 is a wasteful number, since it uses less digits than its factorization.

20882894958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51863 (or 51854 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 63.

The spelling of 20882894958 in words is "twenty billion, eight hundred eighty-two million, eight hundred ninety-four thousand, nine hundred fifty-eight".